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https://en.wikipedia.org/wiki/Histone

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Histone - Wikipedia

In biology, histones are highly basic proteins abundant in lysine and arginine residues that are found in eukaryotic cell nuclei and in most Archaeal phyla. ... Lysine acetylation appears to be less precise in meaning than methylation, in that histone acetyltransferases tend to act on more than one lysine; presumably this reflects the need to ...

https://www.genome.gov/genetics-glossary/histone

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Histone - National Human Genome Research Institute

Definition A histone is a protein that provides structural support for a chromosome. Each chromosome contains a long molecule of DNA, which must fit into the cell nucleus. ... If those histones have a different set of marks like a closed sign, those can tell us that in a particular cell a gene is "off," or closed for business. By studying ...

https://www.britannica.com/science/histone

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Histone | Description, Chromatin, Structure, Functions, & Facts ...

histone, type of protein that plays a critical role in the structural organization and regulation of DNA within the nucleus of eukaryotic cells. Histones were discovered in avian red blood cell nuclei by German biochemist Albrecht Kossel about 1884.. Histones are water-soluble and contain large amounts of basic amino acids, particularly lysine and arginine.

https://www.biologyonline.com/dictionary/histone

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Histone Definition and Examples - Biology Online Dictionary

Definition noun, plural: histones A water-soluble alkaline protein in the nucleus, and from where the DNA tightly coils around to form the nucleosome Supplement Histone is a water-soluble alkaline protein. It is rich in lysine and arginine. There are five major families of histones: H1, H2A, H2B, H3, and H4.

https://microbiologynotes.org/histones-types-and-its-functions/

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Histones types and its functions - Microbiology Notes

Acetylation occurs before the histones are incorporated into nucleosomes.Acetyl group are added to the lysine amino acids in the histone tail each of the core molecules. Acetylation is reversible. Enzymes that acetylated histones are acetyl transferases (HATs), commonly known as histone acetylases. 2 group of HATs enzyme those are:

https://www.nature.com/scitable/definition/histones-57/

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histone / histones | Learn Science at Scitable - Nature

Some histones function as spools for the thread-like DNA to wrap around. Under the microscope in its extended form, chromatin looks like beads on a string. The beads are called nucleosomes.

https://thelifesciencesmagazine.com/what-are-histones-an-overview...

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What Are Histones? An Overview - The Lifesciences Magazine

Histones serve as the foundational building blocks of chromatin, the dynamic structure that packages and protects DNA within the cell nucleus. The core histones – H2A, H2B, H3, and H4 – assemble to form an octameric structure known as the nucleosome, around which DNA elegantly winds. This structural foundation not only compacts DNA but also ...

https://www.merriam-webster.com/dictionary/histone

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HISTONE Definition & Meaning - Merriam-Webster

The meaning of HISTONE is any of various simple water-soluble proteins that are rich in the basic amino acids lysine and arginine and are complexed with DNA in the nucleosomes of eukaryotic chromatin. ... There, enzymes break down the metabolites into epigenetic marks known as acetyl groups and place them on histones to activate one set of genes.

https://www.sciencedirect.com/topics/neuroscience/histone

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Histone - an overview | ScienceDirect Topics

Introduction. Histones are the main protein component of chromatin and they can be divided into two major groups: core histones and linker histones. Core histones: H2A, H2B, H3, and H4 have a rather simple structural organization in which a central folded domain, the histone fold [1], is flanked by two disordered N- and C-terminal “tails” which, in the case of H3 and H4, are very short.

https://library.fiveable.me/key-terms/hs-honors-biology/histones

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Histones - (Honors Biology) - Vocab, Definition, Explanations | Fiveable

Histones are highly alkaline proteins found in the cell nuclei of eukaryotic cells that play a crucial role in the packaging and organization of DNA. They help to form nucleosomes, which are the basic units of chromatin, allowing long strands of DNA to be compacted into a more manageable structure that fits within the nucleus. This organization is essential for DNA replication, repair, and ...

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Histone

In biology, histones are highly basic proteins abundant in lysine and arginine residues that are found in eukaryotic cell nuclei and in most Archaeal phyla. ... Lysine acetylation appears to be less precise in meaning than methylation, in that histone acetyltransferases tend to act on more than one lysine; presumably this reflects the need to ...

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